Shock absorber



July 3,1923 1,460,771

7 G. H. STONER SHOCK ABSORBER F iled Aug. '13 1917 Patented July 3, 1923. I

UNITED STATES PATENT. OFFICE.

ononen n. s'ronnn, OF EAST BOSTON, mssaenusm'rs.

snocx ABSORBER.

Application filed August 13, 191?. Serial No. 155,801.

T 0 all mama may concern;

Be it known that 'I, Gnono'n 'H. STONER,

a citizen of-the' United States, residing at -East Boston, county of Siflfolk, Commonwealth of Massachusetts, have invented certain new and useful Improvements 'in Shock Absorbers,.o f which the following is a specification. I

This invention relates to shock absorbers and particularly to absorbers of the double.

compression type. Shock absorbers of this type, while more efficient in taking care of rebound, have-usually some phase orphases of their'moveme'nt in which they do not quickly catch rebound or shock from the direction opposite to that in which they have just been stremed.

It is more the exception than 'the' rule in ordinary running that the relative movement between the-car bodyand the axle is] extremely complicated both as regards de gree' of shock and the motion arising therefrom, so that the result is acontinuous variant, both as to direction and intensity and must be accommodatednot only in various positions of lateral displacement between the body and the wheels,-but at' different distances between the body and the wheels.

. This matter of distance is an extremely import-ant one, and has to be considered in two classes, first the distance due to the varying load on the body, and second the varying separation due to the compression or throw of the springs.

F 'urthermore, the useof springs in shock absorbers hasgiven rise to much structural difliculty on account of the natural limitation of springs, especially as to length. The

spring of ample length to give a full margin of efficiency and safety is almost certain to be awkwardly long, while a spring of convenientshortness is apt to be overstressed in such a way between the opposite relatlve ly inovable parts of the absorber that shock or rebound from either endthereof and in either directionwill be promptly met'by the combined lengths of the springs. I

Asillustrated in my invention, I have compression spring type whichfis highly efficient-and; yet simple and inexpensiveto manufacture. In the drawings illustrative 1 of an embodiment thereof:

Fig. l is general View of my shock absorber-in position on the car.

gig. 2 is a central longitudinal section, an 4 Fig. 3 a somewhat diagrammatic view-il-.-, lustrati've of -its operation.

In the form shown in the drawings form a cylindrical casing 1 on the end of which I seat an adjustable-bolt 2 held by a lock nut 3' adapted to bepivotally connected to the. stud 4 on the body'of the car preferably over the axle- The opposite end of-the casing 1 is capped'by a threaded cover 5 havmg 6 for a wrench hold. The block is threaded on a stem 7 --having n. eye 8 adapted .to

be engaged by astud 14 on the axle of the- Onthe stem 7 are two pistons 9 and car. 10. Thepiston lO is confined by a stag nut 11 and the piston 9 i held-sepa'ra I therefrom byua; spring 12. On the opposite side ofv the piston 11 is a-spring13 seated against the closed end of the cylinder and bearing on the opposed face .ofthe piston.-

that 'the absorbe'r is pivotally mounted on both body and axle and capable of following up any play or little motion between the two a well as take any direct thrust or rebound. 1 7

It will'be notedi-n the operation and referring to the arrow A that any movement emanating from the body of the car-isreceived by the casing 1 which is cushioned on piston 10' and is thus transmitted to the [spring 12. In this direction therefore my 60 shown a simpleformof shock'absorber of a central opening through which an adjustable-block 6 passes being squared at WVith reference to Fig. 1, it will be seen "the spring 13 vwhichin turn bears-on the shock absorber gets the full benefit of the entire resiliency of both springs. On any movement emanating from a. body-rebound such as Inightocc-ur rom the movement 'just mentioned, it will be' noted that the pull slidable on said stem and acting on one of rection and'a second piston movable on said said springs. stem' opposite to said first namedpiston. 10

; 7. In a shock absorber, a'casing, a stem In testimony whereof I aifix my signav in said casing, a pair of spring members ture in presence of two Witnesses.

5 confined in said casing, a piston disposed GEORGE H. STONER. 7

between the inner endsof said spring mem- Witnesses: v Q bers and loose on said stems, a stop on said' 7 EDWARD L. GiLs0N, stem and bearing on said piston iri-one di- ROBERT J. MEHANG. 

